Solution: Distinct Subsequences
Explore how to apply dynamic programming to find the number of distinct subsequences of a string s that match another string t exactly. Understand the use of a 1D DP array to optimize space and the steps to build the solution by iterating strings in reverse. This lesson helps you implement a time-efficient approach with O(m x n) complexity and minimal memory use.
We'll cover the following...
We'll cover the following...
Statement
Given two strings, s and t, determine how many distinct subsequences of s match t exactly.
Note: A subsequence is formed by deleting zero or more characters from s without changing the relative order of the remaining characters.
You may assume the result will always fit within a
Constraints:
s.length,t.length...